package com.vipbbo.security.distributed.uaa.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;
import org.springframework.security.oauth2.provider.ClientDetailsService;
import org.springframework.security.oauth2.provider.client.JdbcClientDetailsService;
import org.springframework.security.oauth2.provider.code.AuthorizationCodeServices;
import org.springframework.security.oauth2.provider.code.JdbcAuthorizationCodeServices;
import org.springframework.security.oauth2.provider.token.AuthorizationServerTokenServices;
import org.springframework.security.oauth2.provider.token.DefaultTokenServices;
import org.springframework.security.oauth2.provider.token.TokenEnhancerChain;
import org.springframework.security.oauth2.provider.token.TokenStore;
import org.springframework.security.oauth2.provider.token.store.JwtAccessTokenConverter;

import javax.annotation.Resource;
import javax.sql.DataSource;
import java.util.Arrays;

/**
 * @author bbo(zbw)
 * Description 授权服务器配置
 * @Date 2021/4/17
 */

@Configuration
@EnableAuthorizationServer
public class AuthorizationServer extends AuthorizationServerConfigurerAdapter {


    @Autowired
    private TokenStore tokenStore;

    @Resource
    private ClientDetailsService clientDetailsService;

    @Resource
    private AuthorizationCodeServices authorizationCodeServices;

    @Resource
    private AuthenticationManager authenticationManager;

    @Autowired
    private JwtAccessTokenConverter accessTokenConverter;

    @Autowired
    private PasswordEncoder passwordEncoder;

    // 将客户端信息存储在数据库
    @Bean
    public ClientDetailsService clientDetailsService(DataSource dataSource){
        ClientDetailsService clientDetailsService = new JdbcClientDetailsService(dataSource);
        ((JdbcClientDetailsService)clientDetailsService).setPasswordEncoder(passwordEncoder);
        return clientDetailsService;
    }

    // 客户端详情服务
    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {

        clients.withClientDetails(clientDetailsService);
    /*
//	 clients.withClientDetails(clientDetailsService);
        clients.inMemory()// 使用in‐memory存储  内存
                .withClient("c1")// client_id
                .secret(new BCryptPasswordEncoder().encode("secret")) // 客户端密钥
                .resourceIds("res1") // 资源列表
                .authorizedGrantTypes("authorization_code",
                        "password", "client_credentials", "implicit", "refresh_token")// 该client允许的授权类型 authorization_code,password,refresh_token,implicit,client_credentials
                .scopes("all")// 允许的授权范围  read 只读
                .autoApprove(false) //false跳转到授权页面
                .redirectUris("http://www.baidu.com");
        */
    }

    //令牌管理服务
    @Bean
    public AuthorizationServerTokenServices tokenService() {
        DefaultTokenServices service = new DefaultTokenServices();
        service.setClientDetailsService(clientDetailsService); // 客户端详情服务
        service.setSupportRefreshToken(true); // 支持刷新令牌
        service.setTokenStore(tokenStore); // 令牌存储策略
        // 令牌增强 配置jwt使用
        TokenEnhancerChain tokenEnhancerChain = new TokenEnhancerChain();
        tokenEnhancerChain.setTokenEnhancers(Arrays.asList(accessTokenConverter));
        service.setTokenEnhancer(tokenEnhancerChain);

        service.setAccessTokenValiditySeconds(7200); // 令牌默认有效期2小时
        service.setRefreshTokenValiditySeconds(259200); // 刷新令牌默认有效期3天
        return service;
    }


    // 令牌访问端点
    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) {
        endpoints
                .authenticationManager(authenticationManager) // 认证管理器  密码模式使用
                .authorizationCodeServices(authorizationCodeServices) // 授权码模式服务
                .tokenServices(tokenService()) // 令牌管理服务
                .allowedTokenEndpointRequestMethods(HttpMethod.POST); // 允许post提交
    }


    /*
    //设置授权码模式的授权码如何 存取，暂时采用内存方式
    @Bean
    public AuthorizationCodeServices authorizationCodeServices() {
        return new InMemoryAuthorizationCodeServices();
    }
    */

    //设置授权码模式的授权码如何 存取 采用JDBC方式
    @Bean
    public AuthorizationCodeServices authorizationCodeServices(DataSource dataSource) {
        return new JdbcAuthorizationCodeServices(dataSource);
    }

    // 令牌访问端点安全策略
    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) {
        security
                .tokenKeyAccess("permitAll()") // oauth/token_key 公开
                .checkTokenAccess("permitAll()") // oauth/check_token 公开
                .allowFormAuthenticationForClients(); //表单认证（申请令牌）
    }
}
